Midpoint - Card Centering Tool
Ron Stewart #7 (Hockey Cards 1957 Parkhurst) — is it worth grading?

Is Ron Stewart #7 worth grading?

Hockey · Hockey Cards 1957 Parkhurst · full price guide →

Worth grading — even a PSA 9 beats raw

A PSA 10 Ron Stewart #7 sells for $2,305 against $11.03 raw: a $2,294 spread, 209× the ungraded price. Even a PSA 9 ($510) clears the raw price after an economy-tier ~$25 fee, so a near-miss still comes out ahead. Centering is the usual reason a clean copy misses the 10 — measure it before you submit.

Raw (NM)
$11.03
PSA 10
$2,305
PSA 9
$510
Gem premium
209×
As of
Jul 11, 2026

Break-even by outcome and fee

Ron Stewart #7: net result of grading versus selling raw, by outcome and fee tier
If it comes back…Sells forEconomy / bulk (~$25.00)Standard (~$50.00)Express (~$150)
Gem — PSA 10$2,305+$2,269+$2,244+$2,144
PSA 9$510+$474+$449+$349
PSA 8$56.00+$19.97−$5.03−$105

Net = sale price − $11.03 raw value − fee. Fee tiers are illustrative; plug your grader's current price into the calculator below.

Expected value — how often does it need to gem?

Ron Stewart #7: expected value of submitting by gem probability
Chance it gemsExpected saleExpected net (standard fee)
25%$959+$898
50%$1,408+$1,347
75%$1,856+$1,795

Even a miss (a 9) beats selling raw after the standard fee — the gem rate only decides how much you win by.

Which grader pays the most — and what a 10 takes

All centering standards
Ron Stewart #7: top-grade value by grading company with centering tolerance
Grader10 sells forvs bestFront centering for a 10Back
BGS 10$2,997best55/4570/30
PSA 10$2,305−$69255/4575/25
CGC 10$1,383−$1,61455/4575/25
SGC 10$1,383−$1,61455/4575/25

Tolerances are each company's published centering standard for its top grade; surface, corners and edges must also be clean. Centering is the one you can measure yourself before you pay.

Ron Stewart #7 graded prices by company and grade
GradePSACGCBGSSGCGraded
10$2,305$1,383$2,997$1,383
9.5$641
9$510
8$56.00
7$50.00

Run your own numbers

Should I pay this?

Enter the seller’s asking price to see your net outcome per grade.

Other 1957 Parkhurst cards worth checking

Full set checklist

Grading Ron Stewart #7 — FAQ

Is Ron Stewart #7 worth grading?

A PSA 10 Ron Stewart #7 sells for $2,305 against $11.03 raw: a $2,294 spread, 209× the ungraded price. Even a PSA 9 ($510) clears the raw price after an economy-tier ~$25 fee, so a near-miss still comes out ahead. Centering is the usual reason a clean copy misses the 10 — measure it before you submit.

How much is a PSA 10 Ron Stewart #7 worth compared with raw?

A PSA 10 Ron Stewart #7 (Hockey Cards 1957 Parkhurst) sells for about $2,305 versus $11.03 for a raw near-mint copy — a 209× premium as of Jul 11, 2026.

Which grading company is best for Ron Stewart #7?

By resale value, BGS 10 leads at $2,997, ahead of PSA 10 at $2,305. Fees and turnaround differ, so the best-paying label is not always the best net.

What centering does Ron Stewart #7 need for a BGS 10?

BGS publishes 55/45 front and 70/30 back centering as the tolerance for a 10 (Gem Mint). Off-center copies are capped below the top grade regardless of surface — measure yours before paying the fee.

Is your hockey card centered well enough to grade?

Centering makes or breaks a PSA 10. Scan any card with Midpoint to measure its exact centering, get a grade estimate, and see what your copy is actually worth.

Check my card free